Abrégé

The present invention relates to switchgear for breaking a medium- or high-voltage electric current, which switchgear comprises a leaktight enclosure in which electrical components are found as well as a gaseous medium for extinguishing the electric arcs likely to occur in said enclosure, and which switchgear is characterized in that: the gaseous medium comprises at least one fluoroketone alone or in a mixture with at least one gas that does not form part of the fluoroketone family; the fluoroketone is present in the enclosure in part in the liquid state and in part in the gaseous state; and in that the enclosure further comprises means for absorbing molecular species that form after the ionization experienced by said fluoroketone during arcing. The invention also relates to a method of manufacturing said switchgear.

Classes IPC  ?

• C09K 5/00 - Substances pour le transfert de chaleur, pour l'échange de chaleur ou pour le stockage de la chaleur, p. ex. réfrigérantsSubstances pour la production de chaleur ou de froid par des réactions chimiques autres que la combustion
• H02B 13/055 - Caractéristiques relatives au gaz
• H01H 11/00 - Appareillages ou procédés spécialement adaptés à la fabrication d'interrupteurs électriques

Abrégé

The invention relates to a device for interrupting an electric current for medium or high voltage, said device comprising a sealed chamber containing electrical components and a gaseous medium capable of quenching electric arcs that may be produced in the chamber. The invention is characterised in that: the gaseous medium comprises at least one fluoroketone, either alone or mixed with at least one gas that does not belong to the fluoroketone family; the fluoroketone in the chamber is partially in the liquid state and partially in the gaseous state; and the chamber also comprises means for absorbing the molecular species that form after ionisation of the fluoroketone during an electric arc. The invention also relates to a method for producing said device.

Classes IPC  ?

• H02B 13/055 - Caractéristiques relatives au gaz

Abrégé

The invention relates to the use of a dielectric fluid, comprising sulphur hexafluoride and at least one fluoroketone, as an electric insulation and/or electric arc quenching medium in an electric device of a medium or high voltage substation. The invention also relates to an electric device of a medium or hight voltage substation, in which the electric insulation and/or electric arc quenching medium is a dielectric fluid containing sulphur hexafluoride and at least one fluoroketone. The invention is suitable for use in the production of transformers, electricity transport or distribution lines, busbars, connection/disconnection devices (circuit-breakers, switches, isolators, switch-fuses, earthing disconnectors, contactors, etc.).

Classes IPC  ?

• H02B 13/055 - Caractéristiques relatives au gaz

Abrégé

The embodiments of the switch described herein include latching and locking systems so as to retain the rod of a vacuum bottle in a determined, open or closed, position, the systems being driven and controlled by the same means that cause the movable portion of the vacuum bottle to move, or by the disconnector itself.

Classes IPC  ?

• H01H 33/66 - Interrupteurs dans lesquels la coupure s'effectue dans le vide

Abrégé

The present invention relates to the use of a composite material including a polymer matrix and at least one metal fluoride charge selected from among cerium fluorides CeF3 and/or CeF4, lanthanum fluoride LaF3, magnesium fluoride MgF2, barium fluoride BaF2 or mixtures of same, as extinguishing material for electric arcing in an electric apparatus.

Classes IPC  ?

• H01H 9/30 - Moyens pour éteindre ou empêcher des arcs entre pièces traversées par le courant
• H01H 1/22 - Contacts caractérisés par la manière dont les contacts coopérants s'engagent en butant l'un contre l'autre avec membre pivotant rigide portant le contact mobile
• H01H 33/78 - Interrupteurs comportant des moyens séparés pour diriger, obtenir ou augmenter l'écoulement du fluide extincteur d'arc dans lesquels un gaz extincteur d'arc est dégagé par des organes fixesEmploi de matériaux spécifiés dans ce but dans lesquels la coupure s'opère dans un gaz

Abrégé

The invention relates to a novel design for a winding (8) made of a material having low electrical resistivity, such as copper, and a diameter typically larger than 90 mm, intended for generating a magnetic field in an electric contact (2, 3) for a medium-voltage vacuum bulb (1), consisting of a hollow cylinder (8) including slots (81) free of material and formed helically about the longitudinal axis thereof, and being in communication with both the cavity and the outside of the cylinder. According to the invention, the angular length of each helix is at least equal to 360°. The invention enables an increase in the level of the magnetic field AMF obtained by the winding(s) integrated into an electric contact of a vacuum bulb while enhancing uniformity and field symmetry, and reducing production costs.

Classes IPC  ?

• H01H 33/66 - Interrupteurs dans lesquels la coupure s'effectue dans le vide

Abrégé

The invention relates to a structure suitable for improving the dielectric strength between two conductors (C1, C2) having different potentials, the two conductors being separated by an electrically insulating part (I) along which an electric arc can propagate according to a carrier path when the potential difference exceeds a threshold value, characterised in that said structure includes at least one electrically insulating element (pa, pb) positioned on the carrier path such that there is no physical seal, on the one hand, between the electrically insulating element and at least one of the two conductors and, on the other hand, between the electrically insulating element and the electrically conductive part. The invention can be implemented for the dielectric strength of medium- and high-voltage components (seal wires, extension devices, etc.).

Classes IPC  ?

• H01B 17/42 - Moyens pour obtenir une distribution améliorée de la tensionProtection contre la décharge en arc

Abrégé

The invention relates to a protection circuit of an electric circuit including a fuse (F), characterised in that said circuit includes a current clipping circuit (L) connected in series between the fuse (F) and the electric circuit, a means (K) suitable for comparing the voltage measured at the terminals of the current clipping circuit with a threshold value (Vs) and for issuing a comparison signal, a switch (SW) connected in series with a load circuit (Ch), the switch (SW) and the load circuit being connected in parallel with the assembly made up of the current clipping circuit (L) and the electric circuit, the comparison signal constituting a control signal for the switch (SW) to close or open the load circuit. The invention can be used for any fused protection circuit.

Classes IPC  ?

• H02H 3/02 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails
• H02H 7/08 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour moteurs dynamo-électriques

Abrégé

Embodiments of the invention relate to a switch including catching and locking systems (24) for retaining the rod (13) of a vacuum interrupter (10) in a predetermined position, open or closed, said systems being driven and controlled by the same means which moves the mobile portion of the vacuum interrupter, or by the disconnecting switch (4) itself.

Classes IPC  ?

• H01H 33/12 - Contacts auxiliaires sur lesquels l'arc est transféré des contacts principaux
• H01H 31/00 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs
• H01H 33/66 - Interrupteurs dans lesquels la coupure s'effectue dans le vide

Abrégé

The invention relates to a magnetic actuation device for a high voltage apparatus for a vacuum bulb, that includes at least one permanent magnet and at least one coil (3) mounted in series with a transistor switch (4), wherein an electromechanical switch (EM1) is mounted in series with the transistor switch (4) and the coil (3), the first electromechanical switch (EM1) and the transistor switch (4) being by default in an open state so that the electromechanical switch is closed a moment before the closing moment of the transistor switch, and is returned to an open state as soon as the transistor switch is returned in the open state. The invention can be used for turning on and off medium and/or high voltage apparatuses.

Classes IPC  ?

• H01H 9/54 - Circuits non adaptés à une application particulière du dispositif de commutation non prévus ailleurs
• H01H 33/38 - Dispositions à énergie incorporée dans l'interrupteur pour actionner le mécanisme moteur utilisant un électro-aimant
• H01F 7/18 - Circuits en vue d'obtenir des caractéristiques de fonctionnement souhaitées, p. ex. pour un fonctionnement lent, pour l'excitation successive des enroulements, pour l'excitation à grande vitesse des enroulements

Produits et services

Ammeters, amplifiers, capacity measuring apparatus, control panels for electrical power, electric and electronic installations for remote control of industrial operations, electric and electronic testing instruments, detectors, electric loss indicators, electric power indicators, precision measuring apparatus; apparatus and instruments for conducting, distributing, transforming, storing, regulating or controlling electric current, including electric or electronic components for such apparatus and instruments; inductors; circuit breakers; contactors; automated systems; programmers; apparatus for supply, filtration, transformation, maintenance and storage of electrical power; electric storage batteries; indicators (electricity); anti-interference devices (electricity); electric coils; terminals (electricity); branch boxes (electricity); distribution boxes (electricity); junction boxes (electricity); switchboxes (electricity); electrical ducts; electric collectors; control panels (electricity); electric apparatus for commutation; commutators; capacitors; electric conductors; electricity conduits; material for electricity mains; connectors; connectors and patch panels; electric contacts; electric contacts of precious metal; electrical apparatus for monitoring; electric converters; current rectifiers; distribution cabinets; distribution consoles (electricity); distribution boards (electricity); identification threads for electric wires; identification sheaths for electric wires; electric wires; frequency meters; electric loss indicators; switches; inverters (electricity); connections for electric lines; limiters (electricity); junction sleeves for electric cables; ohmmeters; lightning arresters; lightning conductors; electric batteries; downloadable electronic publications regarding apparatus and instruments for conducting, distributing, transforming, storing, regulating or controlling electric current; electric relays; reducers (electricity); overvoltage protection controllers; voltage regulators; electric resistances; wire connectors (electricity); control panels (electricity); transformers; electronic transistors; telemeters; telerupters; variometers; voltmeters; apparatus and instruments for supervision, monitoring, checking (inspection) of apparatus and instruments for electrical energy production, transmission and distribution, electrical energy management apparatus and instruments. Construction, installation, maintenance and repair of electric and electronic apparatus and instruments, supervising (directing) construction work, repair information, breakdown assistance (repair), interference suppression in electrical apparatus, installation, maintenance, repair and restoration of worn or partly destroyed apparatus and instruments for conducting, distributing, transforming, storing, regulating or controlling electric current, rust prevention treatment of apparatus and instruments for conducting, distributing, transforming, storing, regulating or controlling electric current.

Produits et services

Installation, maintenance and repair and upgrade or electric and electronic instruments, namely switchgear and switchboards, relays, metering and monitoring equipment, including re-layout of foundation and building layout; providing information in the fields of construction, supervision and management of works of construction; providing information in the fields of repair and elimination of interference of electric installations; maintenance and repair of computers or computers related to metering, monitoring; repairing of used machines or partially destroyed and maintenance of used machines in the treatment against rust

Produits et services

Ammeters, amplifiers, apparatus for capacity measures, control panels for the electrical energy, electric and electronic installations for the remote control of industrial operations, electric and electronic control apparatus, detectors, indicators of electric loss, indicators for the electrical energy; apparatus and instruments for the conduct, the distribution, the transformation, the accumulation, the regulation or the command of the electric current, including electric or electronic components for such apparatus and instruments; inductance; circuit breakers; contactors; robots; time switches; apparatus for the supply, filtering, transformation, maintenance and stocking of the electrical energy; electric batteries; heralds (electricity): devices anti-interference (electricity); electric reels; borders (electricity); boxes of connection (electricity); boxes of diversion (electricity); limp with connection (electricity); boxes with lids (electricity); electric wiring; electric collectors; control panels (electricity); electric apparatus for switching; switches; electric condensers; conductors; conducts of electricity; material for conduct of electricity; connectors; connectors and switchboard of connection; electric contacts; electric contacts in precious metals electric, apparatus for control; electric converters; rectifiers of current; cupboards of electricity supply; writing desks of distribution (electricity); distribution switchboards (electricity); identification wires for electric cords; girdles of identification for electric cords; electric cords; frequency meters; indicators of electric loss; switches; reversers (electricity); joins of electric lines; limiters (electricity); muffs of connection for electric cables; ohmmeters; lightning conductors; lightning conductors; electric piles; (downloadable) electronic publications related to apparatus and instruments for the conduct, the distribution, the transformation, the accumulation, the regulation or the command of the electric current; electric relays; reducers (electricity), regulators against the surges; regulators of voltage; electric resistances; stringing clamp (electricity); control panels (electricity); transformers; transistors (electronics); telemeters; tv contact breakers; variometers; voltmeters; apparatus and instruments of supervision, surveillance, control (inspection) of apparatus and instruments of production, transmission and distribution of electrical energy, apparatus and instruments of management of the electrical energy. Construction, installation, maintenance and repair of apparatus and electric and electronic instruments, information in construction, supervision (management) of works of construction, information in repair, assistance in case of breakdowns, elimination of interference of electric installations, installation, maintenance and repairing of apparatus and instruments for the conduct, the distribution, the transformation, the accumulation, the regulation or the command of the electric current used or partially destroyed, treatment against the rust of apparatus and instruments for the conduct, the distribution, the transformation, the accumulation, the regulation or the command of the electric current.

Produits et services

Systems for protecting, testing, managing and monitoring electrical installations; software for the integration of architectures for protecting, testing, managing and monitoring electrical installations; computers, computer peripheral devices, and related software.

Produits et services

Protection, control, management and supervision software, namely, software for use in the electrical energy production, transport and distribution, network protection, the electrical devices i;e; isolating switches, main switches, circuit breakers and/or transformers and devices associated, protection and monitoring, the electrical energy production, transport and distribution stations and sub-stations monitoring and control, the grid electrical power optimization and their associated engineering tools; Electric and electronic devices for electrical installations, namely, electric and electronic relays, ammeters, electric power distribution boxes, electric power capacity measures, control panels for electric power, electric installations for the remote control of industrial operations, Electric regulating apparatus, namely electrical control tables and panel; electrical testing equipment and stations; PLCs; automated process monitoring, analysis, communication, measurement, inspection and control and supervision hardware and equipment for industry and for electrical energy production, transport and distribution; Electric power detector, electric loss indicators, indicators for electric power, computer software for use in the integration of protection, control, management and supervision architecture of electrical installations, computers and computer peripherals

Produits et services

Protection, control, management and supervision systems for electrical installations; software used for the integration of protection, control, management and supervision architecture of electrical installations; computers, peripheral devices and associated software. Services of maintenance for protection, control, management and supervision systems for electrical installations. Computer programming; computer software design; engineering; technical research.

Produits et services

Electronic and/or digital relays used for protecting and controlling high voltage power supply systems and related software.

Produits et services

Electronic and/or numerical relays used for the protection and control of high voltage power systems and associated software.

Produits et services

Appareils et équipements électriques destinés à la distribution d'énergie, tableaux de distribution électrique moyenne tension, sectionneurs, transformateurs, disjoncteurs.

Produits et services

Appareils et équipements électriques destinés à la distribution d'énergie, tableaux et cellules de distribution d'énergie électrique à haute et moyenne tension comportant des appareillages électriques débrochables ou non, des disjoncteurs auto-sectionneurs et des sectionneurs de terre, appareils de mesure électriques, compteurs, indicateurs, fusibles, borniers et prises électriques, condensateurs électriques, cartes de circuits imprimés, sectionneurs, transformateurs, diviseurs capacitifs, disjoncteurs.

Produits et services

Machines et machines-outils; moteurs (excepté pour véhicules); accouplements et courroies de transmission (excepté pour véhicules); grands instruments pour l'agriculture. Appareils et instruments scientifiques, géodésiques, électriques (y compris la T.S.F.), photographiques, cinématographiques, optiques, de pesage, de mesurage, de signalisation, de contrôle (inspection), de secours (sauvetage) et d'enseignement; appareils automatiques déclenchés par l'introduction d'une pièce de monnaie ou d'un jeton; machines parlantes; caisses enregistreuses, machines à calculer; appareils extincteurs. Gutta-percha, gomme élastique, balata et succédanés, objets fabriqués en ces matières non compris dans d'autres classes; matières servant à calfeutrer, à étouper et à isoler; amiante, mica et leurs produits; tuyaux flexibles non métalliques.